OHAUS MB120 Service Manual page 39

CHAPTER 3 – MAINTENANCE PROCEDURES
7. Remove the 3 cables, grounding
wire and 1 set of wire connected to
the control board. (See Figure 3-4.)
Remove cables and wire.
A- Cable to Lid sensor board
B- Cable to Main PCB
C- Cable to Main PCB
D- Wire to Heating chamber
E- Grounding cable
Note: Take note on the cable routing.
8. Lift the top housing off and set it
aside.
MB90 MB120 Series Service Manual
A
Figure 3-4. Three screws in Top Housing.
33 Ohaus Corporation www.ohaus.com
B
C
D
E